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| author | Andy Lutomirski <luto@kernel.org> | 2016-03-23 00:24:49 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-03-23 01:36:02 +0300 |
| commit | 203f79078fea8525d0b0a13f2e13534b7ff3aa97 (patch) | |
| tree | 566040db071b590faed174cac7f621b17b8c8887 /arch/sparc | |
| parent | 069923d87e97a26d5f4ee2d53829f2d3cd05294b (diff) | |
| download | linux-203f79078fea8525d0b0a13f2e13534b7ff3aa97.tar.xz | |
sparc/syscall: fix syscall_get_arch
Sparc's syscall_get_arch was buggy: it returned the task arch, not the
syscall arch. This could confuse seccomp and audit.
I don't think this is as bad for seccomp as it looks: sparc's 32-bit and
64-bit syscalls are numbered the same.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/sparc')
| -rw-r--r-- | arch/sparc/include/asm/syscall.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/sparc/include/asm/syscall.h b/arch/sparc/include/asm/syscall.h index 49f71fd5b56e..1757cd6c521b 100644 --- a/arch/sparc/include/asm/syscall.h +++ b/arch/sparc/include/asm/syscall.h @@ -3,6 +3,7 @@ #include <uapi/linux/audit.h> #include <linux/kernel.h> +#include <linux/compat.h> #include <linux/sched.h> #include <asm/ptrace.h> #include <asm/thread_info.h> @@ -128,7 +129,13 @@ static inline void syscall_set_arguments(struct task_struct *task, static inline int syscall_get_arch(void) { - return is_32bit_task() ? AUDIT_ARCH_SPARC : AUDIT_ARCH_SPARC64; +#if defined(CONFIG_SPARC64) && defined(CONFIG_COMPAT) + return in_compat_syscall() ? AUDIT_ARCH_SPARC : AUDIT_ARCH_SPARC64; +#elif defined(CONFIG_SPARC64) + return AUDIT_ARCH_SPARC64; +#else + return AUDIT_ARCH_SPARC; +#endif } #endif /* __ASM_SPARC_SYSCALL_H */ |